Home / 20,262.28-27,958.80-11,309.44

Finding the Fourth Proportional to 20,262.28, 27,958.80 and 11,309.44

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Solution

The fourth proportional to 20,262.28, 27,958.80 and 11,309.44 is: 15,605.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,262.28 : 27,958.80 = 11,309.44 : x
  2. Step 2: Convert to fraction form
    20,262.28/27,958.80 = 11,309.44/x
  3. Step 3: Cross multiply
    20,262.28x = 27,958.80 × 11,309.44
  4. Step 4: Simplify right side
    20,262.28x = 316,198,371.07
  5. Step 5: Solve for x
    x = 316,198,371.07/20,262.28
  6. Step 6: Final answer
    x = 15,605.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.